• Go to Settings > Battery, and disable "Performance mode", "Power Saving mode", and "Ultra Power Saving mode".

• Go to Settings > Battery > App launch.

• Toggle the "Manage automatically" for the app to Off. Make sure to activate all three options of the Manage manually toggle: "Auto-launch", "Secondary launch", and "Run in background".

Older EMUI versions:

Depending on the device and OS version, the location of menu items may differ.

• Go to Settings > Battery > Find the app you'd like to receive notifications from and change the "Close apps after screen lock" into "Don't close".

• Go to Settings > Apps > choose the app > Data usage, scroll down, and set "Background data" to "allowed".

To receive push notifications, set apps to be active in Stamina mode:

• Tap the Application screen icon on your home screen.

• Choose Settings > Power management, then select Stamina mode.

• Turn on the Extended standby, then tap Apps active in standby > Add your applications.

• Scroll left or right to view all applications and services, then mark the relevant checkboxes for the apps you want to run.

• Tap Done.

• Go to Settings > Apps & Notifications > enable notifications for the app.

• Go to Auto-Start Manager > enable it for the app.

• Settings > Apps & Notifications > Special app access > enable for the app.

To fix MIUI push notifications, set the app to auto-start and disable battery optimization for that app:

• Go to Settings > Apps > Permissions > Autostart > choose the app and toggle the slider so that the app will always start in the background.

• Go to Settings > Battery & performance > Choose apps > select the app and choose No restrictions options.

• Go to Settings > Battery > Battery optimization > choose the app and select "Do not optimize".

• Go to Settings > Battery > Energy saver > choose the app and turn off "Freeze when in Background" and "Automatically optimize when an anomaly is detected", then restart your phone.

• Go to Settings > Notifications & status bar > Notification Manager > select the app and turn on "Allow Notifications", "Display on Lock screen", "Display at the top of the screen", "Notification Sound and Vibration", and "Priority notification". Then, restart your phone.

• Go to System Organization > Security > Privacy permissions > Startup Manager > activate the Autostart for the app.

• Open Quick settings panel.
  Swipe down from the top of the screen to open Quick settings.

• Turn off Power saving.
  If it's illuminated, tap the Power mode icon to turn off Power saving mode. This could be preventing notifications from displaying.

• Turn off Do not disturb.
  If it is illuminated, tap the Do not disturb icon to disable this feature. This could also be blocking notifications.

If you have a Samsung on Android 6 and Smart Manager, do the following:

• Go to the Smart Manager app and tap "Battery".

• Under "Power saving for apps" tap "Learn more".

• Tap on "MultiTimer" and tap on 'Disable.

If you have a Samsung on Android 7, do the following:

• Go to your device settings and tap "Device Management", then tap on "Battery".

• Scroll down and tap "Unmonitored apps", then add MultiTimer to this list.

• Go to settings on your phone, tap "Apps", tap "App Manager", then tap "MultiTimer".

• Tap "Alerts," activate "Allow Alerts," then disable "Hide on Lock Screen."

• In the MultiTimer app, tap "More", tap "Settings", "Main Settings", then tap "Update Reminder Time" (under the Time Zone settings).

If you have a Samsung on Android 8.0, do the following:

• Open your phone settings, tap "Apps".

• Tap the three-dot icon in the top right corner, then tap "Special Access".

• Tap "Optimize app usage", then tap "Unoptimized apps".

• Select "All apps", find MultiTimer and turn it off.

• In your phone settings, tap "Battery.

• Tap "Always Sleeping Apps" and make sure MultiTimer is not included in this list.

• Go to "Asus Mobile Manager".

• Activate "Allow" for MultiTimer.

• Go to the application launcher manager and activate MultiTimer.

• Go to power saving mode settings and remove MultiTimer.

• Allow MultiTimer to automatically activate the Autorun Manager on your device.

• Go to the settings of your device and tap "Battery".

• Tap "Optimize Battery" in the upper right corner.

• Select all applications and disable 'MultiTimer.

• Go back to "Battery Optimization", then go to "Advanced Optimization" and disable it.

• Go to your device settings and tap "Sounds and notifications".

• Tap "App notifications" and tap MultiTimer.

• Change MultiTimer to "Priority".

• Go to Phone Management and tap "Energy Management".

• Tap "App protection" and add MultiTimer to protected apps.

• Go to "Settings", "Access rights", "App permissions", "List of apps", then MultiTimer.

• In the functions at the bottom find the "Alert Window" under "Others", set to "Allow".

• Go to the phone settings and tap Apps.

• Find the Manage Background Apps app.

• Tap it and select Disable.

• Open "Security" and tap "Accelerator".

• Click the cog icon in the top right corner and open the "Memory Accelerator List".

• Click on "Add to list" and select MultiTimer.

• Go back to "Security" and tap "Access rights", then "Automatically downloadable applications" and activate "MultiTimer".

• Go back to "Access rights", tap "Manage application", tap on MultiTimer, then activate "Notification" and "Autorun".

• Go back to the main menu to the "Security" app and select "Energy".

• Open "Backup Management" - while in "Backup Management", the screen name will say "Manage Application".

• Activate MultiTimer here.

If the steps above do not work.

• Open the "Security" application, click on "Access rights", click on "Work in background".

• Tap "MultiTimer" and select "Continue to run in the background".

Since Meizu uses the FlymeOS operating system, which is significantly different from most Android operating systems, you may experience problems with notifications.

• Go to settings on your device

• Tap "Alerts", tap the settings icon, tap 'On lock screen', 'Show all alerts'.

• Tap on MultiTimer in the list of apps under "Alerts", disable all options.

• On the home screen, swipe down from the top of the screen.

• Tap "Settings", then "Alerts". Tap on a profile.

• Tap Customize alerts for apps. Tap on an app.

• Change the sound, ringtone, silent mode, LED, LED Color settings.

• To make the updated settings the default settings, tap the "Set Defaults" icon.

• Put MultiTimer on the list to speed up.

• Go to "Settings", "Status bar and notifications", find MultiTimer, activate "Allow notifications", "Show on lock screen", "Desktop icon" and "Preview" switches.

• Go to "iManager", "Energy Management", "Excessive battery usage" and allow MultiTimer to run when background consumption is high.

• Go to settings, press "More settings", press "Applications", press "AutoStart", then activate the button for MultiTimer.

• Go to the Start screen.

• Drag the arrow symbol up.

• Choose Settings.

• Choose Battery.

• Choose Battery Saver.

• Choose TURN ON NOW.

• Choose the back symbol.